package com.atguigu.servlet;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;

public class ResponseIOServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        //获取响应里的字符集
        System.out.println(resp.getCharacterEncoding());//ISO-8859-1
//        //①设置字符集为utf-8
//       resp.setCharacterEncoding("UTF-8");
//
//       //通过响应头，设置浏览器也使用UTF-8字符集
//        resp.setHeader("Content-Type","text/html;charset=UTF-8");

        //②设置字符集为utf-8
        //它会同时设置服务器和客户端都使用UTF-8字符集，还设置了响应头
        //此方法一定要在获取流对象之前调用才有效
        resp.setContentType("text/html;charset=UTF-8");
       //要求：往客户端回传字符串数据
        PrintWriter writer = resp.getWriter();
        writer.write("陈强");
    }
}
